1. Mastering your DSLR L/O: understanding the anatomy of a camera
Understanding the exposure triangle

2. Anatomy of the camera
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LDV 17

3. The exposure triangle
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LDV 17

4. The exposure triangle
1. Shutter speed - how long sensor is exposed to light (it can open at different speed)
2. Aperture - how much light is let through the lens (opens or closes)
3. Iso - how sensitive the sensor is to light
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LDV 17

5. Shutter speed
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LDV 17

6. Shutter speed
The shutter is the mechanical curtain in front of the sensor which allows light to hit the sensor for a certain amount of time
The speed ranges usually from 1/1000 to 1 second
The longer the shutter is open to more light is let through
Each increment doubles the amount of light
02/01/2019
LDV 17

7. Shutter speed
Fast shutter speeds such as 1/1000 allow moving objects to appear sharp
Slow shutter speeds create motion blur
Anything under 1/250 will not freeze action
Shutter speed needs to be balanced with aperture and iso to create proper exposure
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LDV 17

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11. Shutter speed
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12. Your turn
Switch the DSLR mode to shutter priority mode (TV). Take five different photos of a moving object changing the shutter speed each time. Come back to rm 15 and lets have a look at the results!
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LDV 17

13. Aperture
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LDV 17

14. Aperture
Aperture is a mechanical diaphragm that opens wider to let in more light or vice versa
F stops measure how much light is let in
The higher the f stop the less light is let in and vice versa
Common f stops - 1.0; 1.4; 2; 2.8; 4; 5.6; 8; 11; 16; 22
02/01/2019
LDV 17

15. Aperture Aperture adapts depth of field
Wider the aperture the shallower the depth of field
The smaller the aperture the deeper of the depth of field
Aperture has to be balanced by shutter speed and iso
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LDV 17

16. Aperture
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17. Aperture
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18. Aperture
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19. Aperture
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20. Your turn
Switch the DSLR mode to shutter priority mode (AV). Take five different photos of a moving object changing the f stop each time. Come back to rm 15 and lets have a look at the results!
02/01/2019
LDV 17

21. Iso Refers to the sensitivity of the sensor to light
The higher the iso, the more sensitive it is
Therefore, if there is low light, the iso will be higher (1600 for indoors for example)
If the iso is too high it can create visual ‘noise’
However, more high end cameras can handle a high iso
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LDV 17

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